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RELEASE_NOTES: add SED

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Sebastien Bourdeauducq 2018-01-11 11:38:06 +08:00
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RELEASE_NOTES.rst
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@ -3,9 +3,16 @@
Release notes
=============
4.0 (unreleased)
----------------
4.0
---
* RTIO outputs use a new architecture called Scalable Event Dispatcher (SED),
which allows building systems with large number of RTIO channels more
efficiently.
From the user perspective, collision errors become asynchronous, and non-
monotonic timestamps on any combination of channels are generally allowed
(instead of producing sequence errors).
RTIO inputs are not affected.
* The DDS channel number for the NIST CLOCK target has changed.
* The dashboard configuration files are now stored one-per-master, keyed by the
server address argument and the notify port.